Operating System (OS)
Which of the following are loaded into main memory when the computer is booted?

None of these
external command instructions
internal command instructions
word processing instructions
utility programs

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Operating System (OS)
Which of the following is not a characteristic of a daisy chaining priority control scheme?

priority is programmable
the failure of one device may affect other devices on the chain
it is relatively easy to add more devices to the chain
None of these
the number of control lines is independent of the number of devices on the chain

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Operating System (OS)
Uniform Symbols Table

a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
a permanent table which lists all key words and special symbols of the language in symbolic form
consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
None of these
contains all constants in the program

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